Black tip sharks hunting convict tang fishes mating in the lagoon

convict tang black tip shark hunting behaviour hunt spawning reproduction surgeon fish mating shark frenzy grey eat pass undersea Fakarava Tetamanu ocean current school tropical Polynesia banc poisson chirurgien bagnard fraie requins pointe comportement noire frénésie manger passe courant ocean Pacifique sous marin Polynésie group nager Tahiti stock footage Banque d'images